The other semi final will see Marseille face surprise package Red Bull Salzburg.
2017/18 Europa League Semi Final Draw:
Marseille vs Red Bull Salzburg
Arsenal vs Atletico Madrid
First legs will be played on Thursday 26th April, with the second legs one week later on 3rd May.
The final will then be played in Lyon on Wednesday 16th May.
A subsequent draw has also determined that the winner of the Marseille/Salzburg tie
This time last year, Ajax and Manchester United were triumphant in their semi finals to progress to the final in Stockholm. It was won by the latter and they were rewarded with a coveted automatic Champions League group stage place as a result.